Improvement in under-drains



UNITED STATES PATENT OFFICE.

WILLIAM B. HENNING, OF WATEBLOO, INDIANA.

IMPROVEMENT IN UNDER-DRAINS.

Specification forming part of Letters Patent No. 204,038, dated May 21,1878; application filed November 27, 1877.

To all whom it may concern:

Be it known that I, WM. B. HENNING, of

Waterloo, in the county of DeKalb and State of Indiana, have invented anew and useful Device to be Applied in the Construction of Under-Drains,of which the followingis a specification: The invention relates to adevice for the removal of sediment from tile and other drainpipe, andfor the purpose of aturn-chamber and branch connection; and it consistsin achamber or box made of wood or other durable material, and receivesthe tile or other drain-pipe through apertures in its sides, therebyforming a sediment-deposit, turn-chamber, and branch connection, thedevice being such in its construction that the several purposes aredependent upon each other, and mutually contribute to produce thedesired results.-

The object of my invention is to prevent obstructions to the passage ofwater in under-drains, to facilitate the turning of an gles, and theconnecting of branch drains.

When the apparatus is connected with the under-drain at regularintervals it allows of an immediate inspection of the working andcondition of the entire line of drainage, by showing a flow of waterwhen the drain is in work- .ing order; and when the drain is obstructedor clogged,it will show that the flow is checked or stopped.

The accompanying drawing, in which similar letters of reference indicatelike parts, is a perspective of a device embodying my invention.

In the chamber A are apertures B, shaped so as to admit the end of thetile or pipe, thereby depositing the sediment in the chamber A. Thegrate 0 allows the sediment to fall to the bottom, and also admits acurrent of water from below, thereby being of much advantage in spoutylands, while it also pre vents moles, crabs, muskrats, &c., fi'omgetting into the drain or in any way obstructing it. A movable lid ortop, E, enables a quick examination of the drain and an easy and speedyremoval of deposit to be made.

A number of small holes, D, near the top of the chamber will facilitatesurface-drainage when the chamber is placed below the surface; and whenthe chamber extends above ground air is admitted into the drain, therebyspeeding and increasing the flow of water by preventing a vacuum.,

I claim as my invention 1. The box A, having perforations B in itssides, near the top, for connection with tiledrains, and adapted toserve as a sedimentchamber or branch or turn chamber, as specified.

2. The box A, having perforations B in its sides, near the top, forconnection with tiledrains, and provided with grate G, lid E, and inletsD for air or surface-water, according as the device may be placed, asand for the purposes specified.

WM. B. HENNING. Witnesses:

LoUIs A. HENNING, J. D. MOANALLY.

